Clamp



Aug. 28, 1928.

H. G. DISBROW CLAMP Filed Sept. 24, 1927 mvgNToR Zr/w71 fzs mw BY y@ATTORNEY WITNESSES Patented ug. 28, 1928.

UNITED STATES HIRAM G. DISBROW', OF BROOKLYN, NEW YORK.

CLAMP.

Application led September =24, 1927.

This invention relates to clamps, and has for an object to provide animproved clamp designed to clamp a plurality of independent sheets so asto hold them iirmly in register,

while being cut or otherwise treated.

Another object of the invention is to provide an improved clamp, whereina few or a great numberof sheets may be inserted, prop erly adjusted,and then clamped rigidly against shifting without injury.

A further object, more specically, is to provide a clamp for couponbonds or other papers, wherein large parallel surfaces are used topresent clamping jaws, together with means for shitting the surfaces toa clamping or to an unclamping posit-ion.

In the accompanying drawing- Figure 1 is a perspective view of a clampdisclosing an embodiment of the invention,

the same being shown in use. I

Figure 2 is a transverse sectional view through the clamp shown inFigure 1, a supply of paper being shown in clamped position.

Figure 3 is a sectional View through Figure 2, substantially on line 33.

Referring to the accompanying drawing by numerals, 1 indicates a batchof leaves which have been indicated as coupons attached to bonds. Inorder that a plurality of these bonds may be properly held together sothat the coupons from all the bonds may be cut at the same time, a clamp2 is provided which is supplied with a separate or removable key 3whereby the clamp may be moved into clamping action or operated so as tobe removed from the sheets 1. The clamp 2 is provided with a body 4substantially U- shaped in cross section as shown in Figure 2,

said Ul-shaped structure including a back wall 5, a top plate 6 and abottom plate 7. A clamping plate 8 substantially of the same size andshape as the bottom plate 7, is arranged within the body as shown inFigures 2 and 3 and acts to clamp the articles 1. The clamping plate 8is preferably provided with bent down ribs 9 and 10 whereby spacedpressing points are presented. The rear edge of the plate 8 is bent upfor forming a supporting and guide band 11 which is provided with turnedover ears 12 and 13, said ears extending through a retaining strap 14.The strap 14 is not clamped tightly to the back wall 5, but is looselymounted thereon so that the plate 8 may slide up and down according tothe thickness of the article to be clamped and Serial No. 221,736.

according to the action ot' the clamping screw 15. This screw isexternally threaded and provided with a socket 16 designed to receivethe key 3, which key may be removed at any time. A reinforcing andthickening disk 17 is welded, soldered or otherwise secured to the topplate 6 and internally threaded whereby a comparatively long threadedsupport is provided tor the screw 15.

When in use, the screw 15 is unscrcwed to an appreciable extent andplate 8 elevated. flhe device is then placed on the article 1 or anyother article and then screw 15 is operated for forcing the clanfipingplate 8 tightly against the article whereby the article is pressed byplate 8 and presses against the bottom plate 7. To remove article 1,screw 15 is loosened somewhat and then the article may be removed, orrather the clamp may be removed from the article.

The device may be used for many purposes, but is particularly adaptedfor holding in proper registry coupon bearing bonds. In linancialinstitutions, many bonds are held in safe keeping for customers. Couponsmust be cut as a rule, twice a year. The present method is to use anangular cutter which tears one coupon at a time. By using the clampembodying the invention, the bonds are held in perfect registry and bythe use of a machine provided with an angular knife, an entire block ot'il'ty or more may be cut at a single operation. By providing accuracy incutting from the bonds, the appearance of the bonds is better, and alsothe appearance of the coupons cut. The bonds being held in such manner,are kept in safer and better condition.

Vhat I claim is 1. A clamp of the character described, comprising a flatupper plate and a flat lower plate, means for permanently connectingsaid plates along one edge, a clamping plate arranged intermediate saidfirst mentioned plates, a guiding bar for guiding said clamping plate onthe connecting means as it moves between the first two mentioned plates,means at the ends of said clamping plate for securing the guiding bar tothe clamping plate, and a screw member for moving said clamping plate inone direction.

2. A clamp of the character described, comprising a sheet metal bodyformed with a top plate, a bottom plate and a back wall, a clampingplate arranged between said top plate and bottom plate, said clampingplate having 011e edge turned up for forming a guiding flange, saidHarige at the ends being bent ovei` for forming retaining clips, aguiding bar arranged exteriorly of said back Wall and interloeked withsaid clips whereby said clamping plate is slidingly mounted on said backWall, and a screw member carried by said tgp plate for forcing saidclamping plate toward said bottom plate.

Signed at New York in the county of New 10 York and State of New Yorkthis 22nd day of September, 1927.

HIRAM G. DISBROV.

